N-Alkylierungskatalysator, Herstellungsverfahren dafür und Verwendung davon

Details

Veröffentlichungs-Nr.

EP4803194

Anmeldetag

31. Oktober 2024

Veröffentlichung

8. Mai 2025

Rechtsraum

EP

Abstract

The present disclosure relates to an N-alkylation catalyst and a preparation method and use thereof. The catalyst comprises a molecular sieve, an oxide binder, and a modifying component. The modifying component is supported on both the molecular sieve and the oxide binder. The modifying component comprises Cu and P. The percentage of the medium-strong acid amount with respect to the total acid amount of the catalyst is not less than 35%. By controlling the addition order of raw materials during the preparation of the catalyst and selecting Cu and P for synergistic modification, an N-alkylation catalyst with high activity, high stability, extended lifetime, and good recycling performance can be obtained. When the catalyst is used for producing N,N-dimethylaniline, it enables to reduce side reactions, to achieve long-term stable operation of the N-alkylation reaction, and to broaden the applicable reaction temperature, which is beneficial for continuous industrial production.

Anmelder

Firmen

China Petroleum & Chemical Corporation
Sinopec Research Institute of Petroleum Processing Co., Ltd.

Land

🇨🇳 China